Universal Scaling of $p_T$ Distribution of Particles in Relativistic Nuclear Collisions

Abstract

With the experimental data from STAR, PHENIX and BRAHMS on the centrality and rapidity dependence of the $p_T$ spectrum in Au+Au and d+Au collisions, we show that there exists a scaling distribution which is independent of the colliding system, centrality and rapidity. The parameter for the average transverse momentum $<p_T>$ increases from peripheral to central d+Au collisions. This increase accounts for the enhancement of particle production in those collisions. A non-extensive entropy is used to derive the scaling function.

4 pages in RevTeX, 6 figures included, accepted for publication in Phys. Rev. C

References in corpus (1)

• Nuclear Effects on Hadron Production in d+Au and p+p Collisions at sqrt(s_NN)=200 GeV

Cited by in corpus (4)

• Scaling p_T distributions for p and \bar{p} produced in Au+Au collisions at RHIC
• Scaling Behavior of Transverse Kinetic Energy Distributions in Au+Au Collisions at $\sqrt{s_{\mathrm{NN}}}=200$ GeV
• Universal scaling of meson and baryon spectra in p-Pb collisions at 5.02 TeV
• Universality of scaled particle spectra in ultrarelativistic heavy-ion collisions